Great start, but could use some tweakingPuntuado con 4 de 5 estrellas

This is a nice, little, unobtrusive and helpful extension. I just installed it, but can see it will be quite helpful when I need to do a quick calculation while browsing and posting on different pages.

A few suggestions:

1) The precision does not match the display length. For instance, if I calculate "1/3" the display shows the answer "0.33333333333" (13 characters and a little bit of the fourteenth). If I copy/paste the answer, it shows "0.3333333333333333" (18 characters). If you calculate to 18 digits of precision, you should be able to see all 18.

2) You should consider rounding the last digit of the answer. "2/3" shows "0.6666666666666666" but should round to "0.6666666666666667".

3) It would be nice to have a button that copies the answer to the clipboard. This would make it easier to paste the results into a form or forum post page.

4) It seems obvious that your goal was to present a very basic calculator and you have succeeded in that. In a future release you may consider adding more functions that put it on par with a scientific calculator (square root, pi, sine, cosine, add to memory, etc.)

Good, but could use a couple of enhancementsPuntuado con 4 de 5 estrellas

This is a handy tool to have, but not having a button for it (the "Tools" menu would be a good place) makes it easy to forget it's installed. Having to execute the extension from the Tools > Add-ons page is cumbersome. Also the ability to re-size the options window would make it easier to read. I would have brought up these issues in your support forum, but you don't seem to have one (at least no link to one on this page).

Puntuado con 5 de 5 estrellas

Philip, would you please bump the maxVersion for this? I encourage all my extension users to install Console² when submitting support issues. Since many are now using Fx 5 and above, they are not able to install this very helpful addon.

Nice addon but poor supportPuntuado con 2 de 5 estrellas

I have used and recommended this addon for quite some time. But when I installed the Feedly addon, Update Scanner would crash Fx consistently. I reported this problem in his support forum (http://updatescanner.mozdev.org/drupal/forum/4) weeks ago but has yet to be even acknowledged. There are other older bug reports there that are also unacknowledged. A developer should really be more responsive to his user base.

Malicious softwarePuntuado con 1 de 5 estrellas

While trying to find out more about this extension, I went their homepage "http://toolbar.tv-fox.com/". My Kaspersky anti-virus immediately threw up an alarm warning "Attempt to download malicious software".

The AMO reviewers should really investigate add-ons like this before making them public.